The Amp Garage

Hi Dan, Thank you! In the meantime, I’ve found another (even worse) picture of the other side of of this 1st gen. ODS: 1st gen. ODS chassis outside.jpg More thoughts on what you have noticed as soon as I have the time for it. Thanks Neskor! Lots of good photos there. and (as I just noticed) a short ...

… Do you know anything about the history of this amp … ? If I recall correctly, this 1st-generation ODS initially remained in its birthplace, Santa Cruz. In the 90s, the amp spent some time in Europe. For instance, in 1999, it was used during a live performance of Peter Wolf’s composition "Progress...

... picture[s] of the internals of 1st gen amp[s] ... At the very least, I found this. Unfortunately, the image quality is rather mediocre. If I happen to find more in the near future, I’ll post an update here—or in another thread, should the moderators prefer to place this image (or a copy of it) ...

I have only seen a few ODS pictures with "modular" PCB construction. At the moment, I, too, can recall only two Transition Generation ODS amplifiers—each featuring separate circuit boards for V1, V2, and V3—namely, the one owned by Hoyt Axton (above, which has no serial number) and this one built f...

2nd Generation Overdrive Special OD-50WX John Mayer



Comment on this OD-50WX: https://www.instagram.com/kittyhawk_dum ... BPVOYuvpI/

It's Overdrive Reverb Special #0015. If you are interested, you can find some comments here https://www.instagram.com/p/DCjNOPROGIw/ on some of the components used in it. And you’re right—you’ll hardly ever find two Dumble amplifiers where he used the exact same components in every spot, even with v...

I don’t know for certain whether ODRS #0015 (I’ve since recalled the serial number) actually belonged to Lowell George at some point. Perhaps when the Roy brothers referred to it as a "sister amp" in their Instagram comments, they were alluding to the striking visual similarities between the two set...

Dan, I assume that the price asked for the OD-50WX #0023 (with the PI-D12) might be based on the price of a similar combination—the OD-50WX #0041, also with a PI-D12—that was sold a few months ago: https://reverb.com/item/96548480-dumble-overdrive-special-wx50-1978-gray-suede. This is despite the fa...

As far as I can recall right now, the serial number is one between #0013 and #0019. If you're interested, you can find some comments from Howard Dumble's European distributor at the time regarding this ODRS at the two links below: https://www.instagram.com/p/DCjHNyMOguZ/ https://www.instagram.com/p/...

As far as I know, for various electrical engineering reasons, it is generally recommended to keep the interior of a guitar amplifier as clean as possible—for instance, by regularly removing dust and the like. And when looking at such photos, one should perhaps bear in mind that lighting plays a cruc...

Tomo doesn't play #009 but this one:

The red Stackpole switches look pretty cool—at least, I think so.

award70 wrote: ↑Sun May 10, 2026 11:19 pmMy guess is “World Export”.

"Model: OD-50WX" = Overdrive - 50 Watts Export. https://www.instagram.com/kittyhawk_dum ... s_roybros/

I wonder if anyone has an opinion on the circuit differences (LNFB loops in particular) being different between DL 009 and DL011 being a result of: 1. Progression of the circuit design, 2. Circuitry being tailored for a specific player and their gear, and/or 3. Simply a guitar vs. a bass amp? ... T...

...Looking more closely (see red circles) it appears that there may be some under-board jumpers. ... Thanks for pointing out those two solder joints. The absence of these two LNFB connections and the associated components on DL#011's V1 V2 board likely explains why there was room for the two 20µF T...